05000346/LER-1997-008-05, Forwards LER 97-008-05 Re Inadequate Testing of Safety Related Logic

From kanterella

Jump to navigation Jump to search

Forwards LER 97-008-05 Re Inadequate Testing of Safety Related Logic
Person / Time
ML20212C426
Site:	Davis Besse
Issue date:	10/22/1997
From:	Lash J TOLEDO EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20212C431	List: 05000346/LER-1997-008-05, Forwards LER 97-008-05 Re Inadequate Testing of Safety Related Logic
References
AB97-0117, AB97-117, NP-33-97-008-5, NP-33-97-8-5, NUDOCS 9710290227
Download: ML20212C426 (1)
v • d • e

LER-1997-008, Forwards LER 97-008-05 Re Inadequate Testing of Safety Related Logic

Event date:
Report date:
3461997008R05 - NRC Website
v • d • e

text

[<

o e-TOLEDO EDISON A centerior Energy cornpany Davis-Besse Nuclear Power Statiori 5501 North State Route 2 Oak Hart)or. OH 43449-9760 NP-33-97-008-5 AB97-0117 Docket No. 50-346 License No.NPF ~

- October 22, 1997 United States Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555 J.adies and Gentlemen:

LER 97-008, Revision 5 Davis-Besse Nuclear Power Station, Unit No. I Date of Occurrenc_e - Ajarch 18.199_7_

Enclosed please find Revision 5 to Licensee Event Report (LER)97-008, which is being submitted to provide additional information regarding the subject occurrence. The changes are marked with a revision bar in the margin. Please destroy or mark superseded on previous copies of the LER. This LER is being submitted in accordance with 10CFR50.73(aX2XiXB).

Very truly yours, Ja es H. Lash Plant Manager Davis-Besse Nuclear Power Station GMW/dle Enclosure cc:

Mr. A. B. Beach h b

\\

Regional Administrator s

USNRC Region Ill Mr. Stan Stasek DB-1 NRC Sr. Resident Inspector Utility Radiological Safety Board l

9710290227 971022 PDR ADOCK 05000346 S

Licensee Event Report

70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 |

90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 |

10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 |

		Reporting criterion
05000346/LER-1997-001, :on 970122,nuclear Instrumentation Declared Inoperable & Incapable of Performing Safety Functions.Caused by Small Shift in Degraded Bottom Linear Amplifier.Power Range Bottom Linear Amplifier Replaced	on 970122,nuclear Instrumentation Declared Inoperable & Incapable of Performing Safety Functions.Caused by Small Shift in Degraded Bottom Linear Amplifier.Power Range Bottom Linear Amplifier Replaced	10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2) 10 CFR 50.73(a)(2)(viii)(A) 10 CFR 50.73(a)(2)(viii)(B) 10 CFR 50.73(a)(2)(1)
05000346/LER-1997-002-01, :on 970122,identified Potential Overpressurization of Penetrations During Accident Conditions.Installed Mod to Protect Component Cooling Water Supply from Overpressurization Concerns on 970504	on 970122,identified Potential Overpressurization of Penetrations During Accident Conditions.Installed Mod to Protect Component Cooling Water Supply from Overpressurization Concerns on 970504	10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition
05000346/LER-1997-002, :on 970122,identified Potential Overpressurization of Penetrations During Accident Conditions.Plant Mods & Procedure Changes Being Developed to Prevent Overpressurization of Piping	on 970122,identified Potential Overpressurization of Penetrations During Accident Conditions.Plant Mods & Procedure Changes Being Developed to Prevent Overpressurization of Piping	10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii)(A) 10 CFR 50.73(a)(2)(viii)(B) 10 CFR 50.73(a)(2)(1)
05000346/LER-1997-004-01, Regarding Reactor Coolant Pump Motor Oil Piping Not Protected from Leakage as Required Per 10CFR50, Appendix R	Regarding Reactor Coolant Pump Motor Oil Piping Not Protected from Leakage as Required Per 10CFR50, Appendix R	10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition
05000346/LER-1997-004, :on 970203,RCP Motor Oil Piping Was Not Protected from Leakage as Required Per 10CFR50 App R.Caused by Personnel Not Realizing Pressurized Piping in Area. Mods Made to Contain Piping as Necessary	on 970203,RCP Motor Oil Piping Was Not Protected from Leakage as Required Per 10CFR50 App R.Caused by Personnel Not Realizing Pressurized Piping in Area. Mods Made to Contain Piping as Necessary	10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.73(a)(2) 10 CFR 50.73(a)(2)(viii)(A) 10 CFR 50.73(a)(2)(viii)(B)
05000346/LER-1997-005-01, Forwards LER 97-005-01 to Document Completion of Corrective Actions Taken Re 970212 Event.Changes Are Marked W/Rev Bar in Right Margin	Forwards LER 97-005-01 to Document Completion of Corrective Actions Taken Re 970212 Event.Changes Are Marked W/Rev Bar in Right Margin
05000346/LER-1997-006, :on 970225,both Containment Radiation Monitors Were Found to Be Missing Gaskets on Particulate Filter & Iodine Cartridge Holders.Caused by Lack of Procedural Guidance.Missing Gaskets Were Replaced	on 970225,both Containment Radiation Monitors Were Found to Be Missing Gaskets on Particulate Filter & Iodine Cartridge Holders.Caused by Lack of Procedural Guidance.Missing Gaskets Were Replaced	10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii) 10 CFR 50.73(a)(2)
05000346/LER-1997-007, :on 970305,determined That Acceptance Criteria of Surveillance Test to Measure Leakage Into Dh Valve Pit Potentially non-conservative.Caused by Human Error. Surveillance Test Revised	on 970305,determined That Acceptance Criteria of Surveillance Test to Measure Leakage Into Dh Valve Pit Potentially non-conservative.Caused by Human Error. Surveillance Test Revised	10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii)
05000346/LER-1997-008, :on 970318,inadequate Testing of safety-related Logic Occurred.Overall Root Cause Will Be Completed by 980930 & Results of Evaluation Will Be Reported in Suppl to LER	on 970318,inadequate Testing of safety-related Logic Occurred.Overall Root Cause Will Be Completed by 980930 & Results of Evaluation Will Be Reported in Suppl to LER	10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.73(a)(2)(viii) 10 CFR 50.73(a)(2) 10 CFR 50.73(a)(2)(1)
05000346/LER-1997-008-14, Forwards LER 97-008-14,providing Info Re 970318 Occurrence. Revision Bars in Margins Mark Changes.Destroy or Mark Superseded on Previous Copies of LER	Forwards LER 97-008-14,providing Info Re 970318 Occurrence. Revision Bars in Margins Mark Changes.Destroy or Mark Superseded on Previous Copies of LER	10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications
05000346/LER-1997-008-05, Forwards LER 97-008-05 Re Inadequate Testing of Safety Related Logic	Forwards LER 97-008-05 Re Inadequate Testing of Safety Related Logic
05000346/LER-1997-008-12, Forwards LER 97-008-12,providing Addl Info on 970318 Occurrence.Changes Marked W/Rev Bar in Margin.Util Requests That NRC Destroy or Mark Superseded on Previous Copies of LER	Forwards LER 97-008-12,providing Addl Info on 970318 Occurrence.Changes Marked W/Rev Bar in Margin.Util Requests That NRC Destroy or Mark Superseded on Previous Copies of LER	10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications
05000346/LER-1997-008-10, Forwards LER 97-008-10,providing Addl Info Re 970318 Occurence.Rev Bar in Margin Indicates Changes.Destroy or Mark Superseded on Previous Copy of LER	Forwards LER 97-008-10,providing Addl Info Re 970318 Occurence.Rev Bar in Margin Indicates Changes.Destroy or Mark Superseded on Previous Copy of LER	10 CFR 50.73(a)(2)(i)
05000346/LER-1997-008-13, Forwards LER 97-008-13 Re Inadequate Testing of Safety Related Logic.Changes Marked W/Rev Bar in Margin	Forwards LER 97-008-13 Re Inadequate Testing of Safety Related Logic.Changes Marked W/Rev Bar in Margin
05000346/LER-1997-008-01, :on 961113,switchboard Circuit Was Declared Inoperable Due to Switchyard Breaker Alignment.Caused by Misunderstanding of Design.Standing Order Was Issued on 961121 to Provide Guidance for Entering TS	on 961113,switchboard Circuit Was Declared Inoperable Due to Switchyard Breaker Alignment.Caused by Misunderstanding of Design.Standing Order Was Issued on 961121 to Provide Guidance for Entering TS	10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.73(a)(2)(viii) 10 CFR 50.73(a)(2) 10 CFR 50.73(a)(2)(1)
05000346/LER-1997-009-01, Forwards LER 97-009-01,providing Revised Date of Completion for Corrective Actions to Implement New Funtional Test Surveillance Procedure for Testing of Essential Electrical Bus Undervoltage Relays	Forwards LER 97-009-01,providing Revised Date of Completion for Corrective Actions to Implement New Funtional Test Surveillance Procedure for Testing of Essential Electrical Bus Undervoltage Relays	10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications
05000346/LER-1997-010, :on 970504,Main Transformer Deluge Sys Automatically Actuated Due to Degraded Temp Sensor in Transformer Fire Detection Sys.Replaced Damaged Main Transformer & Sensors That Actuate Deluge Sys	on 970504,Main Transformer Deluge Sys Automatically Actuated Due to Degraded Temp Sensor in Transformer Fire Detection Sys.Replaced Damaged Main Transformer & Sensors That Actuate Deluge Sys	10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii)
05000346/LER-1997-011, :on 970825,emergency Ventilation Sys Rendered Inoperable by Maint on Room Isolation Valve Occurred.Caused by Misinterpretation of Tech Spec.Preventive Maint Activities Revised	on 970825,emergency Ventilation Sys Rendered Inoperable by Maint on Room Isolation Valve Occurred.Caused by Misinterpretation of Tech Spec.Preventive Maint Activities Revised	10 CFR 50.73(a)(2)(1)
05000346/LER-1997-012, :on 970904,decay Heat Cooler Seismic Design Inadequacy Occurred.Caused by Inadequate Design of Decay Heat Coolers Support Sys.Decay Heat Cooler Mounting Support Sys Will Be re-evaluated & Modified	on 970904,decay Heat Cooler Seismic Design Inadequacy Occurred.Caused by Inadequate Design of Decay Heat Coolers Support Sys.Decay Heat Cooler Mounting Support Sys Will Be re-evaluated & Modified	10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications
05000346/LER-1997-012-01, Forwards LER 97-012-01,which Is Being Submitted to Revise Completion Date for Recommended Corrective Action.Changes Marked W/Rev Bar in Margin	Forwards LER 97-012-01,which Is Being Submitted to Revise Completion Date for Recommended Corrective Action.Changes Marked W/Rev Bar in Margin	10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.73(a)(2)(viii) 10 CFR 50.73(a)(2) 10 CFR 50.73(a)(2)(1)
05000346/LER-1997-013, :on 971002,potential Condition Adverse to Quality Rept Documented Failure to Perform Surveillance Test Before TS Surveillance Late Date.Caused by Administrative Error.Missed Surveillance Completed	on 971002,potential Condition Adverse to Quality Rept Documented Failure to Perform Surveillance Test Before TS Surveillance Late Date.Caused by Administrative Error.Missed Surveillance Completed	10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(viii) 10 CFR 50.73(a)(2) 10 CFR 50.73(a)(2)(1)
05000346/LER-1997-014-01, :on 970801,pressurizer PORV Setpoint Was Less than Allowable Value.Caused by Degraded Wire Splice.Wire Containing Faulty Splice Was Replaced	on 970801,pressurizer PORV Setpoint Was Less than Allowable Value.Caused by Degraded Wire Splice.Wire Containing Faulty Splice Was Replaced	10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(iii) 10 CFR 50.73(a)(2)(viii) 10 CFR 50.73(a)(2)(1)
05000346/LER-1997-015, :on 971210,EDG Tachometer Circuit Was Noted Outside 10CFR50 App R Design Basis.Caused by Less than Adequate Development & Review of Mod 84-0183.Established Hourly Fire Watch in Cable Spreading Room	on 971210,EDG Tachometer Circuit Was Noted Outside 10CFR50 App R Design Basis.Caused by Less than Adequate Development & Review of Mod 84-0183.Established Hourly Fire Watch in Cable Spreading Room	10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii) 10 CFR 50.73(a)(2)
05000346/LER-1997-015-01, Forwards LER 97-015-01,which Is Being Submitted Ro Provide Addl Info Re Corrective Actions Being Taken as Result of Subj Occurrence.Changes Marked W/Rev Bar in Margin	Forwards LER 97-015-01,which Is Being Submitted Ro Provide Addl Info Re Corrective Actions Being Taken as Result of Subj Occurrence.Changes Marked W/Rev Bar in Margin
05000346/LER-1997-016-01, :on 971217,monthly ECCS Valve Position SR Was Missed.Caused by Flow Path That Was Not Part of Contiguous ECCS Flow Path Envisioned for Compliance W/Ts 4.5.2.Verified Valves Open on 971222	on 971217,monthly ECCS Valve Position SR Was Missed.Caused by Flow Path That Was Not Part of Contiguous ECCS Flow Path Envisioned for Compliance W/Ts 4.5.2.Verified Valves Open on 971222	10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(iii) 10 CFR 50.73(a)(2) 10 CFR 50.73(a)(2)(1)

Retrieved from "https://kanterella.com/w/index.php?title=05000346/LER-1997-008-05,_Forwards_LER_97-008-05_Re_Inadequate_Testing_of_Safety_Related_Logic&oldid=5481427"